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Diffstat (limited to 'Documentation/devicetree/bindings/pci/xilinx-pcie.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pci/xilinx-pcie.txt | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/Documentation/devicetree/bindings/pci/xilinx-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-pcie.txt deleted file mode 100644 index fd57a81180a4..000000000000 --- a/Documentation/devicetree/bindings/pci/xilinx-pcie.txt +++ /dev/null @@ -1,88 +0,0 @@ -* Xilinx AXI PCIe Root Port Bridge DT description - -Required properties: -- #address-cells: Address representation for root ports, set to <3> -- #size-cells: Size representation for root ports, set to <2> -- #interrupt-cells: specifies the number of cells needed to encode an - interrupt source. The value must be 1. -- compatible: Should contain "xlnx,axi-pcie-host-1.00.a" -- reg: Should contain AXI PCIe registers location and length -- device_type: must be "pci" -- interrupts: Should contain AXI PCIe interrupt -- interrupt-map-mask, - interrupt-map: standard PCI properties to define the mapping of the - PCI interface to interrupt numbers. -- ranges: ranges for the PCI memory regions (I/O space region is not - supported by hardware) - Please refer to the standard PCI bus binding document for a more - detailed explanation - -Optional properties for Zynq/Microblaze: -- bus-range: PCI bus numbers covered - -Interrupt controller child node -+++++++++++++++++++++++++++++++ -Required properties: -- interrupt-controller: identifies the node as an interrupt controller -- #address-cells: specifies the number of cells needed to encode an - address. The value must be 0. -- #interrupt-cells: specifies the number of cells needed to encode an - interrupt source. The value must be 1. - -NOTE: -The core provides a single interrupt for both INTx/MSI messages. So, -created a interrupt controller node to support 'interrupt-map' DT -functionality. The driver will create an IRQ domain for this map, decode -the four INTx interrupts in ISR and route them to this domain. - - -Example: -++++++++ -Zynq: - pci_express: axi-pcie@50000000 { - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - compatible = "xlnx,axi-pcie-host-1.00.a"; - reg = < 0x50000000 0x1000000 >; - device_type = "pci"; - interrupts = < 0 52 4 >; - interrupt-map-mask = <0 0 0 7>; - interrupt-map = <0 0 0 1 &pcie_intc 1>, - <0 0 0 2 &pcie_intc 2>, - <0 0 0 3 &pcie_intc 3>, - <0 0 0 4 &pcie_intc 4>; - ranges = < 0x02000000 0 0x60000000 0x60000000 0 0x10000000 >; - - pcie_intc: interrupt-controller { - interrupt-controller; - #address-cells = <0>; - #interrupt-cells = <1>; - }; - }; - - -Microblaze: - pci_express: axi-pcie@10000000 { - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - compatible = "xlnx,axi-pcie-host-1.00.a"; - reg = <0x10000000 0x4000000>; - device_type = "pci"; - interrupt-parent = <µblaze_0_intc>; - interrupts = <1 2>; - interrupt-map-mask = <0 0 0 7>; - interrupt-map = <0 0 0 1 &pcie_intc 1>, - <0 0 0 2 &pcie_intc 2>, - <0 0 0 3 &pcie_intc 3>, - <0 0 0 4 &pcie_intc 4>; - ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x10000000>; - - pcie_intc: interrupt-controller { - interrupt-controller; - #address-cells = <0>; - #interrupt-cells = <1>; - }; - - }; |